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Power optimized control and distribution method of mobile sites under high mobile environment

A technology for power optimization and distribution methods, applied in power management, electrical components, sustainable buildings, etc.

Inactive Publication Date: 2014-08-13
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The large-scale laying of high-speed railways has brought about a large number of user requirements for broadband wireless communication in a high-mobility environment, while traditional technologies such as GSM-R can only support a rate of 200kbps, which is obviously not enough to meet such user needs, so it is necessary to study New technology and new architecture to meet the needs of broadband wireless communication in high mobility environment

Method used

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  • Power optimized control and distribution method of mobile sites under high mobile environment
  • Power optimized control and distribution method of mobile sites under high mobile environment
  • Power optimized control and distribution method of mobile sites under high mobile environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The mobile station in this embodiment adopts the continuous allocation mode.

[0044] Such as figure 1 As shown, the present embodiment is aimed at straight track, the base station and the running track of the mobile station are set in parallel, and the vertical distance between the base station and the running track of the mobile station is d 0 , the operating speed of the mobile station is v, and the coverage area of ​​base station A is d s , the path loss index is α, usually the value of α is 2 to 5, the data arrival rate is μ, and the cache limit of the mobile station is Q m , the channel between the mobile station and the base station is an AWGN channel, and the noise variance is σ 2 .

[0045] The optimal power control and allocation method of the mobile station in this embodiment is as follows:

[0046] Step 1, preset zero time. For base station A, the time when mobile station B passes through point O is preset as zero time, and the service period is The ti...

Embodiment 2

[0057] The mobile station in this embodiment adopts a ladder allocation method.

[0058] Such as figure 1 As shown, the present embodiment is aimed at straight track, the base station and the running track of the mobile station are set in parallel, and the vertical distance between the base station and the running track of the mobile station is d 0 , the operating speed of the mobile station is v, and the coverage area of ​​base station A is d s , the path loss index is α, usually the value of α is 2 to 5, the data arrival rate is μ, and the cache limit of the mobile station is Q m , the channel between the mobile station and the base station is an AWGN channel, and the noise variance is σ 2 .

[0059] The optimal power control and allocation method of the mobile station in this embodiment is as follows:

[0060] Step 1, preset zero time. For base station A, the time when the mobile station passes through point O is preset as zero time, and the service period is The time...

Embodiment 3

[0074] The mobile station in this embodiment adopts a ladder allocation method.

[0075] Such as figure 1 As shown, the present embodiment is aimed at straight track, the base station and the running track of the mobile station are set in parallel, and the vertical distance between the base station and the running track of the mobile station is d 0 , the operating speed of the mobile station is v, and the coverage area of ​​base station A is d s , the path loss index is α, usually the value of α is 2 to 5, the data arrival rate is μ, and the cache limit of the mobile station is Q m , the channel between the mobile station and the base station is an AWGN channel, and the noise variance is σ 2 .

[0076] The optimal power control and allocation method of the mobile station in this embodiment is as follows:

[0077] Step 1, preset zero time. For base station A, the time when the mobile station passes through point O is preset as zero time, and the service period is The time...

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Abstract

The invention discloses a power optimized control and distribution method of mobile sites under a high mobile environment, and aims at providing a power optimized control and distribution method of mobile sites which can satisfy the cache limitation of the mobile sites under the high mobile environment. The method comprises the following steps: firstly presetting a service period of a base station as(T0, T0+ds / v), then judging the quantity of power turning points in the service period, solving time corresponding to each power turning point, and solving a signal-to-noise ratio of a transmitting terminal according to a first transmitting-terminal signal-to-noise ratio calculation formula or second transmitting-terminal signal-to-noise ratio calculation formula. By adopting the method, the needed transmitting power is minimized under the condition that the cache limitation is satisfied, so that the cache of the mobile site has no overflowing, and the transmitting power is minimized.

Description

technical field [0001] The invention relates to a power optimization control and allocation method of a mobile station in a high mobility environment. Background technique [0002] The large-scale laying of high-speed railways has brought about a large number of user requirements for broadband wireless communication in a high-mobility environment, while traditional technologies such as GSM-R can only support a rate of 200kbps, which is obviously not enough to meet such user needs, so it is necessary to study New technologies and new frameworks are used to meet the needs of broadband wireless communications in high-mobility environments. [0003] At present, the communication scheme in the high-mobility environment adopts a two-hop transmission architecture, that is, the access point is set inside the car, and the antenna of the access point is set outside the car. When the user transmits information with the base station, the user first sends the signal to the access point....

Claims

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Application Information

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IPC IPC(8): H04W52/34
CPCY02B60/50
Inventor 张闯樊平毅易粟王刚
Owner TSINGHUA UNIV
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